Rotary engine.



PATENTBD JUNE 4; 190.7. 0. 0. GOSBRUD & 0. GOSERUD, In.

ROTARY ENGINE. A rrmuuxol nun 21.19, nos. nnnnwnn m10. s, nos.

3 SHEETS-SHEET 1. I

entors f o Attorn eys y, l wif'nesse l Y PATENTED .TUNE 4, 1907!' 0.' O. GOSERUD & 0. GOSBRUD. Jn.

l ROTARY ENGINE. uruonlox Hmm Arn.1a.1sos. nnxnwnn Dna. s. 190s.

8 SHEETS-SHEET 2.

0&0. wmdwzewgmm inventors.

l l l Wtnesse y if E Attorneys ,Il alla miu.. lmlllltl. l t

' PAT'BNTBD JUNI: 4, lsovf 0.*0. GOSERUD 6L 0.GOSBRUD. Jn..

. ROTARY ENGINE.

Arrmonxon Imm 23.18, nos. nnnnwsn nso. 5.1m.

3 SHEETS-SHEET 3.

l 111ml jim@ minimum UNITED STATESNPATENT onirica."

OLE OLSEN (SOSERUD AN D OLE GOSERUD, JR., OF SUMMIT, SOUTH DAKOTA.

ROTARY ENGINE.

Specicatonl of Letters Patent.

Patented .Tune 4, 1907.

Application led `April 18, 1905. Renewed December 5, 1906. Serial No. 346:485.

To rtZZ whom, it may concern:

Be it known that we, OLE OLSEN GosERUD and OLE GosERUn, Jr., citizens of the United States, residing at Summit, in the cour ty of Roberts and State of South Dakota, have i11- ventcd a new and useful Rotary Engine, of which the following isa specification.

This invention relates to rotary engines, and has or its princi )al object to provide a novel form of multiple cylinder engine that may be revolved in either direction, t-he several cylinders of the engine being provided with vaives that are connected to a single reversing lever to permit their simultaneous operation.

A further object of the invention is to provide a multiple cylinder engine with a single steam chest extending through all of the cylinders and'from which all of said cylinders are supplied with steam or other fluid under ressure.

" A sti l further object of the invention is to rovide for the balancing of the abutments y fluid pressure in order to lessen frictional resistance.

A still further object of the invention is to provide a novel form of iston carrying a suitable cut off valve having a port of any desired length in accordance with the work for which the engine is intended, so that steam pressure may be supplied throughout any portion of the stroke.

A still further object of the invention is to provide a novel form `of piston wing and piston wing packing for the purpose of preventing any leakage of steam.

lith these and other objects in view, as will more fully hereinafter a pear, the invention consists in certain nove features of construction and arrangement of parts, hereinafter fully described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the form, proportions, size and minor 'details of the structure may be made without departing `from the s irit or sacrificing any of the advantages o the invention.

In the accompanying drawings r-Figure 1 is a side elevation of a rotary engine constructed in accordance with the invention. Fig. 2 is a sectional plan view of the Sallie. Fig. 3 is a vertical sectional view of the engine on the line 3-3 of Fig. 2. Fig. 4 is a similar View on the line 4 4 of Fig. 2 Fig.

tail views of portions of the piston wing pack- 6 5 ing members detached.

Similar numerals of reference are employed to indicate corresponding parts throughout the several figures of thc drawings.

The frame or casing of thc engine is divided 7o into a number of separate engines, four being illustrated in the present instance, and each including a revoluble piston member, and a revoluble abutment, the several abutments being keyed to a shaft 1'2, while the piston 75 members are secured to a shaft 13, the two shafts being connected for mutual move-` ment by gears 14 of the same diameter.

The abutment chambers 16 and the steam chambers 17 are circular in form and inter- 8o sect, so that a iston member may pass into the abutment c iamber during a portion of its revolution, while a. ortion of the revoluble abutment is at all tlmes projecting into the steam cylinder. 8 5

The pistons, as will appear more clearly on reference to Fig. 6, are in the form of disks 19 having radially arranged duplex piston wings 2() of the character shown in Figs. 8 and 9, the

opposite ends of each piston wing extending 9o into adjacent steam cylinders andthe c orresponding abutments being provided wlth iston wing receiving recesses 19 that register with and permit the passage of the piston Wing ends during each revolution, and

the shape of these recesses is preferably such that there will be continuous, orgpractically continuous, contact between the outer edge of the piston wing and the wall of the recess during this portion of the stroke. r roo The piston disks 19 serve as division members between adjacent steam cylinders, and they are provided with a large number of ports 23 to permit free communication between adjacent steam cylinders. :o5

'The cylinders are divided into pairs by a central vertically disposed partition 24, there being a pair of communicating cylinders 25 and 26 on one side the iartitfion, and

a pair of communicating cylin ers 27 and 28 no Fig. 7 is a similar view showing the 6o 34 arranged Within the lines of the annular ribs, so that steam admitted through the pipe 35 will pass to the interior of all of said ribs, thereby forming a continuous steam chest Within all of the cylinders. The ribs are stationary and are slightly vconcaved, as at Y 36, Fig. 3, to receive the periphery of a revoluble abutment, the joint being steam tight, and packing being employed at this point in order to prevent the passage of steam. The

. two outer cylinders and 28 work in pairs,

and the ribs 29 and 32 of these cylinders are each provided with a steam port 37 to admit steam from the steam chest to the steam splace at a point above the point of contact of t e ribs and abutment, while the inner cylinders 26 and 27 also work in pairs, and their ribs are rovided with steam ports 38 at points be ow the meeting lines of the abutments and ribs.

In each rib is a vertical slot 39 for the reception of a reversing valve, there being four are connected by rods 46 to a transversely extending bar 47 that is carried by one arm of a bell crank lever 48 fulcrumed at the top of the engine. The opposite end of the be l crank lever is connected by a link 49 to the reversing lever 44, and the latter carries a latch 5() which may be locked in a segment 51 of the usual type for the purpose of adjusting vand locking the valves in order to govern the quantity of steam passing through the ports,

although this in all cases will not be necessary, inasmuch as steam may be governed by a throttle valve 52 coupled in the steam inlet pige 35.

rom each side of each ofthe istons projects a cut off valve in the form ci) an annular flange 54 that is provided with an elongated port 55, which in traveling over the steam port formed in the rib will permit the flow of steam from the steam chest to the annular steam chest, and the length of this port 55 "governs the quantity of steam admitted to the engine, or rather the time during which steam 1s admitted, so that the piston may be worked under ull pressure, or the steam may b e cut ofi early 1n the stroke and used expanslvelv.

Inv the opposite heads of the engine are' will be opened and when the valve is loweredport 6() will be closed and the port 61 will be opened. The ports are the same in both ends and the two upper ports are always opened, or the two lower ports are opened.

vThe duplex piston wings of the two piston disks are disposed, respectively7 at dialnetrically opposite points, that is to say, the wing fitting in the cylinders '27 and 28 is shown in the full lines in Figs. 3 and 5, while the corresponding` wing of pistons 25 and 26 is in the position indicated by dotted lines in said figures, and the cut oil' valves carried by the disks are correspondingly arranged.

The abutments are all of the same type, being merely in the form of circular disks, and their recesses are disposed in positions to correspond to the positions of the piston wings, that is to say, the recesses 19 of the abutments protruding in the cylinders 27 and 28 will be in a osition illustrated in full lines in Figs. 3 and) 4, While the corresponding abutments fitting in chambers 25 and 26 will have their recesses at the points indicated by dotted lines in said iigures.

In order to partly balance the weight of the abutments and reduce friction, steam pockets 67 are arranged in the lower portions of the Walls of the abutment chamber, and these serve in a measure to raise the abutments and to prevent unnecessary friction. All of the steam orts are placed in communication with each) other by ports 68, and at one side ofthe engine is a pet cock 69 through which Water of condensation may be withdrawn from time to time. In order to drain the cylinders, each cylinder has an outlet ort 70 under the control of a valve 71, the atter being connected by a rocker arm 72 to an operating rod 73. By moving this rod in the direction of its length, the ports may be opened for the purpose of drawing oil water o condensation.

ach of the pistons 20 is formed of a pair of rectangular plates 75 and 76 that are provided with centrally dis osed recesses 77 to receive the edge walls o radial slots formed in the piston disks for the pur ose, and these plates ma be fastened toget 1er bt bolts or screws. he plates are provi ed with grooves all around their outer edges, and in these grooves are arranged acking strips 7 8 and 79, the opposite ends oi) each strip being IOO IIO'

mitered and flanged as shown in Figs. and 11. The plates are further provided with diagonally disposed cutting recesses for the reception of packing members S() that have end flanges or loops S1 for the rcccpzion of the end flanges of the packing strips. The inner ends of these packing members rest against-small springs S3 arranged in recesses S4 in the piston wings, said springs being shown in the present instance in the form of jopen rings having an expansive tendency,

so that the pac-king members 8() will be 'forced outward and will tend to expand all 'oli-the packing strips and move the latter into engagement with the vertical and curved {walls of the annular steam space.

In the operation of the4 engine, steam is @admitted through the pi )e to the interior 'of the annular rib 32, an from thence passes Lthrough the several openings 34 to the intefrior of the annular ribs and the four steam ,c vlinders. The reversing leveris then moved Eto open either the ports'' or the ports 3S land close the other ports. lf the ports 37 are iopen, the upper escape port 6() will be closed, and the port 61 will be open. Il the arts then be 1n the position illustrated in Fig. 3, steam will pass through the port 37 and will Eact on the revoluble abutment, and the piston wing and etl'ect movement of the latter -the direction indicated by the arrow, and any dead steam in advance of the wing will escape through the port o1. This operation 'will continue until the edge of the elongated port of the cnt 0H' valve closes the port 37, this in the present case occurring at about half stroke, and the steam acting expansively thereafter. This of course may be altered ln accordance with the purpose for which he engine is intended, or the valve itself nay be made adjustable if desired. i The ;team entering the cylinder 2S between the lbutment and the piston wing will pass ,hrough the openings 23 into the space be- )ween the second abutment and the piston ving in cylinder '27, and will operate also n the second cylinder, while the escape )asses in the opposite direction from cylinler 27 to the openings 23 in advance of the )iston wings, and thence from the cylinder ZS'through the escape port 61. At the same imc steam will pass from the chest through die port 37 of rib 29 in cylinder '25, and will ,perate on the iston wing in said cylinder, ind a portion o this steam will pass through @he openings 23 of the piston disk to the cylinler .26 and operate on that portion of the `iston wing projecting from said cylinder, so

hat all'four of the cylinders will be operated. To reverse the. engine, it is merely neces- Aary to raise the bar 47 by means of the re- Q'ersing lever, whereupon the two ports 37 ifill be closed and the port 3S will be opened.

ly the same movement, the upper escape port will be opened and the lower port 61 will be closed. The two cylinders 26 and 27 will then come into operation and start the movement of the pistons in the reverse direction, or the direction indicated by the arrow in Fig. 4, and a portion of the quantity of steam admitted to said cylinders will pass to the outer cylinders '25 and 28, the operation being the same as before described.

Having thus described the invention, what is claimed ist- 1. In a rotary engine, a pair of cylinders arranged side by side and having communieating steam chests, a piston disk separating the two cylinders and provided with steam passages, a piston wing having portions projecting into said cylinders, abutments coacting with the pistons, steam ports for the admission of steam from the chests to the cylinders, the port of one cylinder being on one side of the active face of said abutment, and the port ol the second cylinder being on the opposite side, and valves for* controlling said ports.

2. In a rotary engine, a pair of cylinders arranged side by side, a revoluble piston disk forming a division wall between the two cylinders and provided with openings for the )assage of steam, a piston wing carried b v the disk and having portions projecting into said cylinders, abutments coacting with the wings, and means for controlling the admis sion of steam into the cylinders, the steam admitted to one passing directlyr under full pressure to the other and acting on both members of the piston wing.

3. In a rotary engine, a pair of cylinders arranged side by side and communicating with each other, a piston disk forming a division wall between the two cylinders and provided with steam passages extending therethrough, a wing carried by the piston and having portions pro'ecting into both cylindersa steam chest aving valved ports for placing one or other of the cylinders in communication with the steam supply, and an exhaust port leading from one o said cylinders.

4. In a rotary engine, the combination with va pair of cvlinders arranged side by side., of a piston disk forming a division wall between the cylinders and provided with openings for the passage of steam, Ya piston wing having port-ions projecting into both cylinders, annular ribs arranged centrally wit-hin the cylinders and forming a steam chest, abutments arranged to make contact with the annular ribs, ports leading through the ribs and disposed in one cylinder on one side of the point of Contact of the abutment and rib, and in the second cylinder on the opposite side of said point of contact, valves for lOO IIO

controlling said ports, and an exhaust port i leading from one of the cylinders.

5. In a rotary engme, a pair of cylmders arranged side by side, a piston disk fornnng a division wall between the cylinders and provided with openings for the passage of steam, a piston wing carried by the disk and having members projecting into both cylinders, and means for admitting steam to one ofthe cylinders to act on both Wing members in revolving the piston in one direction, and for the admission of steam to the second cylinder to act on both wing members in revolving the piston in the opposite direction.

6. In a rotary engine, a plurality of cylinders, a shaft extending therethrough, pistons carried by the shaft and provided with openings for the passage of steam, each of' said cylinders having an annular rib, the spaces within the ribs being placed in communication with each other to form a practically continuous 'steam chest throughout the whole of the cylinders, and valved ports leading through said ribs.

7'. In a steam engine, a plurality of sets of cylinders arranged side by side, pistons disposed in said cylinders, a shaft carrying the pistons, a continuous annular steam chest ext-ending centrally through all of the pistons of one set and common to all of the cylinders, and valved ports leading from the steam chest to the several cylinders.

8. In a. rotary engine, a plurality of cylinders arranged side by side, a shaft extending through the cylinders, pistons carried by said shaft and provided with openings for the passage of steam, annular ribs formed in each of the cylinders on lines concentric with the center of the shaft and forming a continuous steam chest for all of said cylinders, valved ports leading through the ribs, and abutments coacting with the pistons.

9. The combination in a rot-ary engine, of a plurality of cylinders arranged side by side, a shaft extendmg through the cylinders, annular ribs arranged in alinement with each other in the several cylinders and forming a continuous annular steam chest, ports leading through the ribs; wings carried by the pistons, abut-ments ceac-ting with the pistons and provided with recesses to permit the passage of said Wings, exhaust ports, valves controlling the ports, and a valve shifting mechanism common to all of said valves.

10. In a rotary engine, a plurality of pairs of cylinders arranged side by side, a piston disk forming a division Wall between the cylinders of each pair and provided with openings for the passage of steam, annular 5 ribs in each cylinder and forming a continuous annular steam chest, ports leading through the ribs, valves for controlling said ports, piston wings carried by said disks, the. Wings of one pair being diametrically opposed to the Wings of the second pair, and abutments provided with recesses for the passage of said wings.

l1. In a rotary engine, a plurality of cylinders arranged side by side, a shaft extending through the cylinders, pistons carried by the shaft, a continuous annular steam chest common to all of the cylinders and provided with ports for the passage of steam, piston wings carried by the disks, escape ports leading from less than the whole number of cylinders, valves controlling the ports from the steam chest and the escape ports, rods or stems connected to the valves, a cross bar to which all of the rods are connected, vand means tor operating said cross bar to effect simultaneous adjustment of all the valves.

12. In a rotary engine, the combination With a revoluble piston having a radial slot, of a piston wing having a continuous marginal groove, packing stri is fit ting in the groove at both sides and ends of the wing, packing' members carried by the Wing and movable in a direction diagonal thereof and provided with end flanges interfitting with correspondingly shaped portions at the ends of the packing strips, and springs tending to urge said members outward from the Wing.

13. In a rotary engine, a radially slotted piston disk, a piston wing formed of a pair of lates having grooves for the reception of t ie walls of the radial slot, said plates being recessed and provided With a continuous marginal groove, packing stri s fitting in said groove and provided with tanged end portions, springs seated in the recesses, and slidably mounted packing members bearing at one end on the springs and provided at their opposite ends with flanges interfitting with the flanges on the packing strips.

In testmony that we claim the foregoing as our own, We have hereto affixed our signatures in the presence of two Witnesses.

OLE OLSEN GOSERUD. OLE GOSERUD, JUNIOR.

lVitnesses JOHN JoRGENsoN, H. B. IIANsoN. 

